diff --git a/package.json b/package.json
index e11e5c0..e0c5f6f 100644
--- a/package.json
+++ b/package.json
@@ -96,7 +96,7 @@
     "koa-static": "1.5.2",
     "koa-validate": "0.2.11",
     "later": "1.2.0",
-    "lodash": "4.17.4",
+    "lodash": "4.17.21",
     "lodash.find": "4.6.0",
     "lodash.isempty": "4.4.0",
     "lodash.remove": "4.7.0",